✦ LIBER ✦

Laser Photoacoustic Detection of High Overtone Transitions of ClCN in the Near Infrared

✍ Scribed by M. Lecoutre; I. Hadj Bachir

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 89 KB
Volume: 197
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1999.7895

No coin nor oath required. For personal study only.

✦ Synopsis

A titanium-sapphire laser associated with a photoacoustic spectrometer was used to record the spectrum of ClCN between 10 300 and 13 000 cm Ϫ1 . The 01 1 5-01 1 0, 00 0 5-00 0 0, and 00 0 6 -00 0 0 vibrational bands have been detected for both 35 Cl 12 C 14 N and 37 Cl 12 C 14 N molecules. The rotational structure of the 00 0 5-00 0 0 band has been observed at high resolution and fully analyzed for the main isotopomer 35 Cl 12 C 14 N. Rotational constants of the upper state of this transition have been determined. The anharmonic vibrational constants of the 3 mode were evaluated up to the fourth order from the new band origins and bandhead positions.

📜 SIMILAR VOLUMES

Vibrational Overtone Transitions of OCS

Vibrational Overtone Transitions of OCS in the Near Infrared

✍ Xiaoke Yang; Chifuru Noda 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 152 KB

Vibrational overtone transitions of OCS in the near infrared, 10 000-14 000 cm 01 , are observed for the first time by means of the photoacoustic technique. The spectra are analyzed using molecular parameters and Hamiltonions derived for energy levels below 5000 cm 01 . It is demonstrated that the m

The Near-Infrared Transition of CuCl Obs

The Near-Infrared Transition of CuCl Observed by Intracavity Laser Spectroscopy

✍ L.C. O'Brien; Hong Cao; James J. O'Brien 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 256 KB

The near-infrared electronic transition of CuCl, occurring in the region of 745 nm, was recorded using intracavity laser absorption spectroscopy. The (0, 0), (1, 1), and (2, 2) vibronic bands were analyzed, and from this the molecular constants for the two electronic states were derived. Originally

High-Resolution Laser Photoacoustic Spec

High-Resolution Laser Photoacoustic Spectroscopy of HSiF3: The 5ν1 and 6ν1 Overtone Bands

✍ M. Lecoutre; T.R. Huet; E.B. Mkadmi; H. Bürger 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 151 KB

A spectrum of HSiF 3 has been recorded at room temperature with a gas pressure of 20 -50 Torr in the near-infrared region. A laser photoacoustic spectrometer consisting of a longitudinal resonant cell coupled to a titanium:sapphire ring laser was employed. The 5 1 and 6 1 overtone bands of H 28 SiF

High-Resolution Measurements of HBr Tran

High-Resolution Measurements of HBr Transitions in the First Overtone Band Using Tunable Diode Lasers

✍ Shang-I Chou; Douglas S. Baer; Ronald K. Hanson 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 116 KB

High-resolution absorption lineshapes of the R(7) and P(2) transitions in the first overtone (v ϭ 0 -2) band of H 79 Br have been recorded at room temperature using a pair of distributed feedback diode lasers operating near 1.95 and 2.00 m, respectively. Spectral line intensities and self-broadening

Fine Structure Transitions of BiOH in th

Fine Structure Transitions of BiOH in the Near-Infrared Region

✍ E.H. Fink; O. Shestakov; K.D. Setzer 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 118 KB

Near-infrared emission bands were observed near 6200 and 5700 cm 01 when water vapor (H 2 O, D 2 O) was added to the reaction of bismuth vapor (Bi x ) with microwave-discharged oxygen in a fast-flow system. With the help of ab initio calculations of Yang Khandogin et al. (to be published in J. Mol.

Near-Infrared High Resolution Diode Lase

Near-Infrared High Resolution Diode Laser Spectrum of the CH2b̃1B1←ã1A1Transition

✍ Christopher Fockenberg; Andrew J Marr; Trevor J Sears; Bor-Chen Chang 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 171 KB

A new diode laser-based spectrometer operating at wavelengths close to 1 mm has been constructed for transient absorption measurements in the gas phase. Using a dual beam detection system for noise cancellation, the minimum detectable absorption was found to be 1 1 10 04 in 0.5 msec. The sensitivity